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<div class="header">
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<a href="#pub-types">Public 类型</a> &#124;
<a href="#pub-methods">Public 成员函数</a> &#124;
<a href="classpcl_1_1geometry_1_1_mesh_i_o-members.html">所有成员列表</a>  </div>
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<div class="title">pcl::geometry::MeshIO&lt; MeshT &gt; 模板类 参考</div>  </div>
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<p>Read / write the half-edge mesh from / to a file.  
 <a href="classpcl_1_1geometry_1_1_mesh_i_o.html#details">更多...</a></p>

<p><code>#include &lt;<a class="el" href="mesh__io_8h_source.html">mesh_io.h</a>&gt;</code></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-types"></a>
Public 类型</h2></td></tr>
<tr class="memitem:a0c3fa6a128cbc229682bd529d9cf07cb"><td class="memItemLeft" align="right" valign="top"><a id="a0c3fa6a128cbc229682bd529d9cf07cb"></a>
typedef MeshT&#160;</td><td class="memItemRight" valign="bottom"><b>Mesh</b></td></tr>
<tr class="separator:a0c3fa6a128cbc229682bd529d9cf07cb"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a21f8a782243426838ec187c1f607e04a"><td class="memItemLeft" align="right" valign="top"><a id="a21f8a782243426838ec187c1f607e04a"></a>
typedef Mesh::Vertex&#160;</td><td class="memItemRight" valign="bottom"><b>Vertex</b></td></tr>
<tr class="separator:a21f8a782243426838ec187c1f607e04a"><td class="memSeparator" colspan="2">&#160;</td></tr>
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typedef Mesh::HalfEdge&#160;</td><td class="memItemRight" valign="bottom"><b>HalfEdge</b></td></tr>
<tr class="separator:a9a4156e0b1f917de9997b0e87214a6e3"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a98bbf65d22c6e3bc6b6ef3bd9262aa50"><td class="memItemLeft" align="right" valign="top"><a id="a98bbf65d22c6e3bc6b6ef3bd9262aa50"></a>
typedef Mesh::Face&#160;</td><td class="memItemRight" valign="bottom"><b>Face</b></td></tr>
<tr class="separator:a98bbf65d22c6e3bc6b6ef3bd9262aa50"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:acdd5b99722dc297f979939b9cac75a79"><td class="memItemLeft" align="right" valign="top"><a id="acdd5b99722dc297f979939b9cac75a79"></a>
typedef Mesh::Vertices&#160;</td><td class="memItemRight" valign="bottom"><b>Vertices</b></td></tr>
<tr class="separator:acdd5b99722dc297f979939b9cac75a79"><td class="memSeparator" colspan="2">&#160;</td></tr>
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typedef Mesh::HalfEdges&#160;</td><td class="memItemRight" valign="bottom"><b>HalfEdges</b></td></tr>
<tr class="separator:a1f8bb3b08c2494a5ba3afe803e23965e"><td class="memSeparator" colspan="2">&#160;</td></tr>
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typedef Mesh::Faces&#160;</td><td class="memItemRight" valign="bottom"><b>Faces</b></td></tr>
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typedef Mesh::VertexIndex&#160;</td><td class="memItemRight" valign="bottom"><b>VertexIndex</b></td></tr>
<tr class="separator:a866e91e9714ddf6d98264eb1aa44d7cd"><td class="memSeparator" colspan="2">&#160;</td></tr>
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typedef Mesh::HalfEdgeIndex&#160;</td><td class="memItemRight" valign="bottom"><b>HalfEdgeIndex</b></td></tr>
<tr class="separator:a66a198998f83b5f911c7c7386647e69f"><td class="memSeparator" colspan="2">&#160;</td></tr>
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typedef Mesh::FaceIndex&#160;</td><td class="memItemRight" valign="bottom"><b>FaceIndex</b></td></tr>
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</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="pub-methods"></a>
Public 成员函数</h2></td></tr>
<tr class="memitem:aa8f504efc938060c919353c007586477"><td class="memItemLeft" align="right" valign="top"><a id="aa8f504efc938060c919353c007586477"></a>
&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classpcl_1_1geometry_1_1_mesh_i_o.html#aa8f504efc938060c919353c007586477">MeshIO</a> ()</td></tr>
<tr class="memdesc:aa8f504efc938060c919353c007586477"><td class="mdescLeft">&#160;</td><td class="mdescRight">Constructor. <br /></td></tr>
<tr class="separator:aa8f504efc938060c919353c007586477"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a772208d4d73090f176cb4f7dad050f2d"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classpcl_1_1geometry_1_1_mesh_i_o.html#a772208d4d73090f176cb4f7dad050f2d">read</a> (const std::string &amp;filename, <a class="el" href="class_mesh.html">Mesh</a> &amp;mesh) const</td></tr>
<tr class="memdesc:a772208d4d73090f176cb4f7dad050f2d"><td class="mdescLeft">&#160;</td><td class="mdescRight">Read the mesh from a file with the given filename.  <a href="classpcl_1_1geometry_1_1_mesh_i_o.html#a772208d4d73090f176cb4f7dad050f2d">更多...</a><br /></td></tr>
<tr class="separator:a772208d4d73090f176cb4f7dad050f2d"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:ae9e973ddfc075939470ae69a1126baf5"><td class="memItemLeft" align="right" valign="top">bool&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classpcl_1_1geometry_1_1_mesh_i_o.html#ae9e973ddfc075939470ae69a1126baf5">write</a> (const std::string &amp;filename, const <a class="el" href="class_mesh.html">Mesh</a> &amp;mesh) const</td></tr>
<tr class="memdesc:ae9e973ddfc075939470ae69a1126baf5"><td class="mdescLeft">&#160;</td><td class="mdescRight">Write the mesh to a file with the given filename.  <a href="classpcl_1_1geometry_1_1_mesh_i_o.html#ae9e973ddfc075939470ae69a1126baf5">更多...</a><br /></td></tr>
<tr class="separator:ae9e973ddfc075939470ae69a1126baf5"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">详细描述</h2>
<div class="textblock"><h3>template&lt;class MeshT&gt;<br />
class pcl::geometry::MeshIO&lt; MeshT &gt;</h3>

<p>Read / write the half-edge mesh from / to a file. </p>
<dl class="tparams"><dt>模板参数</dt><dd>
  <table class="tparams">
    <tr><td class="paramname">MeshT</td><td>e.g. <a class="el" href="classpcl_1_1geometry_1_1_triangle_mesh.html" title="Half-edge mesh that can only store triangles.">pcl::geometry::TriangleMesh</a> or <a class="el" href="classpcl_1_1geometry_1_1_polygon_mesh.html" title="General half-edge mesh that can store any polygon with a minimum number of vertices of 3.">pcl::geometry::PolygonMesh</a> </td></tr>
  </table>
  </dd>
</dl>
<dl class="section author"><dt>作者</dt><dd>Martin Saelzle</dd></dl>
<dl class="todo"><dt><b><a class="el" href="todo.html#_todo000010">待办事项:</a></b></dt><dd><ul>
<li>Only writes the topology (not the mesh data).</li>
<li>Supports only ascii.</li>
<li>Does not consider the mesh traits (e.g. manifold or not) </li>
</ul>
</dd></dl>
</div><h2 class="groupheader">成员函数说明</h2>
<a id="a772208d4d73090f176cb4f7dad050f2d"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a772208d4d73090f176cb4f7dad050f2d">&#9670;&nbsp;</a></span>read()</h2>

<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;class MeshT &gt; </div>
<table class="mlabels">
  <tr>
  <td class="mlabels-left">
      <table class="memname">
        <tr>
          <td class="memname">bool <a class="el" href="classpcl_1_1geometry_1_1_mesh_i_o.html">pcl::geometry::MeshIO</a>&lt; MeshT &gt;::read </td>
          <td>(</td>
          <td class="paramtype">const std::string &amp;&#160;</td>
          <td class="paramname"><em>filename</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype"><a class="el" href="class_mesh.html">Mesh</a> &amp;&#160;</td>
          <td class="paramname"><em>mesh</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td> const</td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span>  </td>
  </tr>
</table>
</div><div class="memdoc">

<p>Read the mesh from a file with the given filename. </p>
<dl class="params"><dt>参数</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">filename</td><td>Path to the file. </td></tr>
    <tr><td class="paramdir">[out]</td><td class="paramname">mesh</td><td>The loaded mesh. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>返回</dt><dd>true if success. </dd></dl>
<div class="fragment"><div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;        {</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160;          std::ifstream file (filename.c_str ());</div>
<div class="line"><a name="l00095"></a><span class="lineno">   95</span>&#160; </div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;          <span class="keywordflow">if</span> (!file.is_open ())</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;          {</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;            std::cerr &lt;&lt; <span class="stringliteral">&quot;Error in MeshIO::read: Could not open the file &#39;&quot;</span> &lt;&lt; filename &lt;&lt; <span class="stringliteral">&quot;&#39;\n&quot;</span>;</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;            <span class="keywordflow">return</span> (<span class="keyword">false</span>);</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;          }</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160; </div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;          <span class="comment">// Read the header</span></div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;          std::string line;</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;          <span class="keywordtype">unsigned</span> <span class="keywordtype">int</span> line_number = 1;</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;          <span class="keywordtype">int</span> n_v = -1, n_he = -1, n_f = -1;</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160; </div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;          <span class="keywordflow">if</span> (!std::getline (file, line) || line.compare (<span class="stringliteral">&quot;PCL half-edge mesh&quot;</span>) != 0)</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;          {</div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;            std::cerr &lt;&lt; <span class="stringliteral">&quot;Error loading &#39;&quot;</span> &lt;&lt; filename &lt;&lt; <span class="stringliteral">&quot;&#39; (line &quot;</span> &lt;&lt; line_number &lt;&lt; <span class="stringliteral">&quot;): Wrong file format.\n&quot;</span>;</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;            <span class="keywordflow">return</span> (<span class="keyword">false</span>);</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;          }</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;          ++line_number;</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160; </div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;          <span class="keywordflow">if</span> (!std::getline (file, line))</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;          {</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160;            std::cerr &lt;&lt; <span class="stringliteral">&quot;Error loading &#39;&quot;</span> &lt;&lt; filename &lt;&lt; <span class="stringliteral">&quot;&#39;&#39; (line &quot;</span> &lt;&lt; line_number &lt;&lt; <span class="stringliteral">&quot;): Number of vertices / half-edges / faces not found.\n&quot;</span>;</div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;            <span class="keywordflow">return</span> (<span class="keyword">false</span>);</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;          }</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;          {</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;            std::istringstream iss (line);</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;            <span class="keywordflow">if</span> (!(iss &gt;&gt; n_v &gt;&gt; n_he &gt;&gt; n_f) || iss.good ()) <span class="comment">// Don&#39;t allow more than 3 en</span></div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160;            {</div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;              std::cerr &lt;&lt; <span class="stringliteral">&quot;Error loading &#39;&quot;</span> &lt;&lt; filename &lt;&lt; <span class="stringliteral">&quot;&#39;&#39; (line &quot;</span> &lt;&lt; line_number &lt;&lt; <span class="stringliteral">&quot;): Could not read the number of vertices / half-edges / faces.\n&quot;</span>;</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;              <span class="keywordflow">return</span> (<span class="keyword">false</span>);</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160;            }</div>
<div class="line"><a name="l00126"></a><span class="lineno">  126</span>&#160;          }</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;          <span class="keywordflow">if</span> (n_v &lt; 0 || n_he &lt; 0 || n_f &lt; 0)</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;          {</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;            std::cerr &lt;&lt; <span class="stringliteral">&quot;Error loading &#39;&quot;</span> &lt;&lt; filename &lt;&lt; <span class="stringliteral">&quot;&#39;&#39; (line &quot;</span> &lt;&lt; line_number &lt;&lt; <span class="stringliteral">&quot;): Invalid number of vertices / half-edges / faces.\n&quot;</span>;</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;            <span class="keywordflow">return</span> (<span class="keyword">false</span>);</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;          }</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160;          ++line_number;</div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160; </div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;          <span class="comment">// Read the vertices.</span></div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;          {</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;            mesh.vertices_.reserve (n_v);</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;            HalfEdgeIndex idx_ohe; <span class="comment">// Outgoing half-edge;</span></div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160; </div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;            <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i&lt;n_v; ++i, ++line_number)</div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;            {</div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;              <span class="keywordflow">if</span> (!std::getline (file, line))</div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;              {</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;                std::cerr &lt;&lt; <span class="stringliteral">&quot;Error loading &#39;&quot;</span> &lt;&lt; filename &lt;&lt; <span class="stringliteral">&quot;&#39;&#39; (line &quot;</span> &lt;&lt; line_number &lt;&lt; <span class="stringliteral">&quot;): Could not read the line.\n&quot;</span>;</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160;                <span class="keywordflow">return</span> (<span class="keyword">false</span>);</div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;              }</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160; </div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160;              std::istringstream iss (line);</div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;              <span class="keywordflow">if</span> (!(iss &gt;&gt; idx_ohe) || iss.good ())</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;              {</div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;                std::cerr &lt;&lt; <span class="stringliteral">&quot;Error loading &#39;&quot;</span> &lt;&lt; filename &lt;&lt; <span class="stringliteral">&quot;&#39;&#39; (line &quot;</span> &lt;&lt; line_number &lt;&lt; <span class="stringliteral">&quot;): Could not read the vertex.\n&quot;</span>;</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;                <span class="keywordflow">return</span> (<span class="keyword">false</span>);</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;              }</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160;              mesh.vertices_.push_back (Vertex (idx_ohe));</div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;            }</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;          }</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160; </div>
<div class="line"><a name="l00157"></a><span class="lineno">  157</span>&#160;          <span class="comment">// Read the half-edges.</span></div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;          {</div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;            mesh.half_edges_.reserve (n_he);</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;            VertexIndex   idx_tv;  <span class="comment">// Terminating vertex.</span></div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;            HalfEdgeIndex idx_nhe; <span class="comment">// Next half-edge;</span></div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;            HalfEdgeIndex idx_phe; <span class="comment">// Previous half-edge.</span></div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160;            FaceIndex     idx_f;   <span class="comment">// Face.</span></div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160; </div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;            <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i&lt;n_he; ++i, ++line_number)</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;            {</div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;              <span class="keywordflow">if</span> (!std::getline (file, line))</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;              {</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;                std::cerr &lt;&lt; <span class="stringliteral">&quot;Error loading &#39;&quot;</span> &lt;&lt; filename &lt;&lt; <span class="stringliteral">&quot;&#39;&#39; (line &quot;</span> &lt;&lt; line_number &lt;&lt; <span class="stringliteral">&quot;): Could not read the line.\n&quot;</span>;</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;                <span class="keywordflow">return</span> (<span class="keyword">false</span>);</div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;              }</div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160; </div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;              std::istringstream iss (line);</div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;              <span class="keywordflow">if</span> (!(iss &gt;&gt; idx_tv &gt;&gt; idx_nhe &gt;&gt; idx_phe &gt;&gt; idx_f) || iss.good ())</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160;              {</div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;                std::cerr &lt;&lt; <span class="stringliteral">&quot;Error loading &#39;&quot;</span> &lt;&lt; filename &lt;&lt; <span class="stringliteral">&quot;&#39;&#39; (line &quot;</span> &lt;&lt; line_number &lt;&lt; <span class="stringliteral">&quot;): Could not read the half-edge.\n&quot;</span>;</div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;                <span class="keywordflow">return</span> (<span class="keyword">false</span>);</div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160;              }</div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;              mesh.half_edges_.push_back (HalfEdge (idx_tv, idx_nhe, idx_phe, idx_f));</div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;            }</div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;          }</div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160; </div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;          <span class="comment">// Read the faces.</span></div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160;          {</div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;            mesh.faces_.reserve (n_f);</div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;            HalfEdgeIndex idx_ihe; <span class="comment">// Inner half-edge.</span></div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160; </div>
<div class="line"><a name="l00188"></a><span class="lineno">  188</span>&#160;            <span class="keywordflow">for</span> (<span class="keywordtype">int</span> i=0; i&lt;n_f; ++i, ++line_number)</div>
<div class="line"><a name="l00189"></a><span class="lineno">  189</span>&#160;            {</div>
<div class="line"><a name="l00190"></a><span class="lineno">  190</span>&#160;              <span class="keywordflow">if</span> (!std::getline (file, line))</div>
<div class="line"><a name="l00191"></a><span class="lineno">  191</span>&#160;              {</div>
<div class="line"><a name="l00192"></a><span class="lineno">  192</span>&#160;                std::cerr &lt;&lt; <span class="stringliteral">&quot;Error loading &#39;&quot;</span> &lt;&lt; filename &lt;&lt; <span class="stringliteral">&quot;&#39;&#39; (line &quot;</span> &lt;&lt; line_number &lt;&lt; <span class="stringliteral">&quot;): Could not read the line.\n&quot;</span>;</div>
<div class="line"><a name="l00193"></a><span class="lineno">  193</span>&#160;                <span class="keywordflow">return</span> (<span class="keyword">false</span>);</div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160;              }</div>
<div class="line"><a name="l00195"></a><span class="lineno">  195</span>&#160; </div>
<div class="line"><a name="l00196"></a><span class="lineno">  196</span>&#160;              std::istringstream iss (line);</div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160;              <span class="keywordflow">if</span> (!(iss &gt;&gt; idx_ihe) || iss.good ())</div>
<div class="line"><a name="l00198"></a><span class="lineno">  198</span>&#160;              {</div>
<div class="line"><a name="l00199"></a><span class="lineno">  199</span>&#160;                std::cerr &lt;&lt; <span class="stringliteral">&quot;Error loading &#39;&quot;</span> &lt;&lt; filename &lt;&lt; <span class="stringliteral">&quot;&#39;&#39; (line &quot;</span> &lt;&lt; line_number &lt;&lt; <span class="stringliteral">&quot;): Could not read the face.\n&quot;</span>;</div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160;                <span class="keywordflow">return</span> (<span class="keyword">false</span>);</div>
<div class="line"><a name="l00201"></a><span class="lineno">  201</span>&#160;              }</div>
<div class="line"><a name="l00202"></a><span class="lineno">  202</span>&#160;              mesh.faces_.push_back (Face (idx_ihe));</div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160;            }</div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;          }</div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160; </div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;          <span class="comment">// Set the data</span></div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;          <span class="keywordflow">if</span> (Mesh::HasVertexData::value)   mesh.vertex_data_cloud_.   resize (n_v);</div>
<div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;          <span class="keywordflow">if</span> (Mesh::HasHalfEdgeData::value) mesh.half_edge_data_cloud_.resize (n_he);</div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;          <span class="keywordflow">if</span> (Mesh::HasEdgeData::value)     mesh.edge_data_cloud_.     resize (n_he / 2);</div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;          <span class="keywordflow">if</span> (Mesh::HasFaceData::value)     mesh.face_data_cloud_.     resize (n_f);</div>
<div class="line"><a name="l00211"></a><span class="lineno">  211</span>&#160; </div>
<div class="line"><a name="l00212"></a><span class="lineno">  212</span>&#160;          <span class="keywordflow">return</span> (<span class="keyword">true</span>);</div>
<div class="line"><a name="l00213"></a><span class="lineno">  213</span>&#160;        }</div>
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<a id="ae9e973ddfc075939470ae69a1126baf5"></a>
<h2 class="memtitle"><span class="permalink"><a href="#ae9e973ddfc075939470ae69a1126baf5">&#9670;&nbsp;</a></span>write()</h2>

<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;class MeshT &gt; </div>
<table class="mlabels">
  <tr>
  <td class="mlabels-left">
      <table class="memname">
        <tr>
          <td class="memname">bool <a class="el" href="classpcl_1_1geometry_1_1_mesh_i_o.html">pcl::geometry::MeshIO</a>&lt; MeshT &gt;::write </td>
          <td>(</td>
          <td class="paramtype">const std::string &amp;&#160;</td>
          <td class="paramname"><em>filename</em>, </td>
        </tr>
        <tr>
          <td class="paramkey"></td>
          <td></td>
          <td class="paramtype">const <a class="el" href="class_mesh.html">Mesh</a> &amp;&#160;</td>
          <td class="paramname"><em>mesh</em>&#160;</td>
        </tr>
        <tr>
          <td></td>
          <td>)</td>
          <td></td><td> const</td>
        </tr>
      </table>
  </td>
  <td class="mlabels-right">
<span class="mlabels"><span class="mlabel">inline</span></span>  </td>
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</div><div class="memdoc">

<p>Write the mesh to a file with the given filename. </p>
<dl class="params"><dt>参数</dt><dd>
  <table class="params">
    <tr><td class="paramdir">[in]</td><td class="paramname">filename</td><td>Path to the file. </td></tr>
    <tr><td class="paramdir">[in]</td><td class="paramname">mesh</td><td>The saved mesh. </td></tr>
  </table>
  </dd>
</dl>
<dl class="section return"><dt>返回</dt><dd>true if success </dd></dl>
<div class="fragment"><div class="line"><a name="l00222"></a><span class="lineno">  222</span>&#160;        {</div>
<div class="line"><a name="l00223"></a><span class="lineno">  223</span>&#160;          std::ofstream file (filename.c_str ());</div>
<div class="line"><a name="l00224"></a><span class="lineno">  224</span>&#160; </div>
<div class="line"><a name="l00225"></a><span class="lineno">  225</span>&#160;          <span class="comment">// Write the header</span></div>
<div class="line"><a name="l00226"></a><span class="lineno">  226</span>&#160;          <span class="keywordflow">if</span> (!file.is_open ())</div>
<div class="line"><a name="l00227"></a><span class="lineno">  227</span>&#160;          {</div>
<div class="line"><a name="l00228"></a><span class="lineno">  228</span>&#160;            std::cerr &lt;&lt; <span class="stringliteral">&quot;Error in MeshIO::write: Could not open the file &#39;&quot;</span> &lt;&lt; filename &lt;&lt; <span class="stringliteral">&quot;&#39;\n&quot;</span>;</div>
<div class="line"><a name="l00229"></a><span class="lineno">  229</span>&#160;            <span class="keywordflow">return</span> (<span class="keyword">false</span>);</div>
<div class="line"><a name="l00230"></a><span class="lineno">  230</span>&#160;          }</div>
<div class="line"><a name="l00231"></a><span class="lineno">  231</span>&#160; </div>
<div class="line"><a name="l00232"></a><span class="lineno">  232</span>&#160;          file &lt;&lt; <span class="stringliteral">&quot;PCL half-edge mesh\n&quot;</span>;</div>
<div class="line"><a name="l00233"></a><span class="lineno">  233</span>&#160;          file &lt;&lt; mesh.sizeVertices ()  &lt;&lt; <span class="stringliteral">&quot; &quot;</span></div>
<div class="line"><a name="l00234"></a><span class="lineno">  234</span>&#160;               &lt;&lt; mesh.sizeHalfEdges () &lt;&lt; <span class="stringliteral">&quot; &quot;</span></div>
<div class="line"><a name="l00235"></a><span class="lineno">  235</span>&#160;               &lt;&lt; mesh.sizeFaces ()     &lt;&lt; <span class="stringliteral">&quot;\n&quot;</span>;</div>
<div class="line"><a name="l00236"></a><span class="lineno">  236</span>&#160; </div>
<div class="line"><a name="l00237"></a><span class="lineno">  237</span>&#160;          <span class="comment">// Write the vertices</span></div>
<div class="line"><a name="l00238"></a><span class="lineno">  238</span>&#160;          <span class="keywordflow">for</span> (<span class="keyword">typename</span> Vertices::const_iterator it=mesh.vertices_.begin (); it!=mesh.vertices_.end (); ++it)</div>
<div class="line"><a name="l00239"></a><span class="lineno">  239</span>&#160;          {</div>
<div class="line"><a name="l00240"></a><span class="lineno">  240</span>&#160;            file &lt;&lt; it-&gt;idx_outgoing_half_edge_ &lt;&lt; <span class="stringliteral">&quot;\n&quot;</span>;</div>
<div class="line"><a name="l00241"></a><span class="lineno">  241</span>&#160;          }</div>
<div class="line"><a name="l00242"></a><span class="lineno">  242</span>&#160; </div>
<div class="line"><a name="l00243"></a><span class="lineno">  243</span>&#160;          <span class="comment">// Write the half-edges</span></div>
<div class="line"><a name="l00244"></a><span class="lineno">  244</span>&#160;          <span class="keywordflow">for</span> (<span class="keyword">typename</span> HalfEdges::const_iterator it=mesh.half_edges_.begin (); it!=mesh.half_edges_.end (); ++it)</div>
<div class="line"><a name="l00245"></a><span class="lineno">  245</span>&#160;          {</div>
<div class="line"><a name="l00246"></a><span class="lineno">  246</span>&#160;            file &lt;&lt; it-&gt;idx_terminating_vertex_ &lt;&lt; <span class="stringliteral">&quot; &quot;</span></div>
<div class="line"><a name="l00247"></a><span class="lineno">  247</span>&#160;                 &lt;&lt; it-&gt;idx_next_half_edge_     &lt;&lt; <span class="stringliteral">&quot; &quot;</span></div>
<div class="line"><a name="l00248"></a><span class="lineno">  248</span>&#160;                 &lt;&lt; it-&gt;idx_prev_half_edge_     &lt;&lt; <span class="stringliteral">&quot; &quot;</span></div>
<div class="line"><a name="l00249"></a><span class="lineno">  249</span>&#160;                 &lt;&lt; it-&gt;idx_face_               &lt;&lt; <span class="stringliteral">&quot;\n&quot;</span>;</div>
<div class="line"><a name="l00250"></a><span class="lineno">  250</span>&#160;          }</div>
<div class="line"><a name="l00251"></a><span class="lineno">  251</span>&#160; </div>
<div class="line"><a name="l00252"></a><span class="lineno">  252</span>&#160;          <span class="comment">// Write the faces</span></div>
<div class="line"><a name="l00253"></a><span class="lineno">  253</span>&#160;          <span class="keywordflow">for</span> (<span class="keyword">typename</span> Faces::const_iterator it=mesh.faces_.begin (); it!=mesh.faces_.end (); ++it)</div>
<div class="line"><a name="l00254"></a><span class="lineno">  254</span>&#160;          {</div>
<div class="line"><a name="l00255"></a><span class="lineno">  255</span>&#160;            file &lt;&lt; it-&gt;idx_inner_half_edge_ &lt;&lt; <span class="stringliteral">&quot;\n&quot;</span>;</div>
<div class="line"><a name="l00256"></a><span class="lineno">  256</span>&#160;          }</div>
<div class="line"><a name="l00257"></a><span class="lineno">  257</span>&#160; </div>
<div class="line"><a name="l00258"></a><span class="lineno">  258</span>&#160;          <span class="keywordflow">return</span> (<span class="keyword">true</span>);</div>
<div class="line"><a name="l00259"></a><span class="lineno">  259</span>&#160;        }</div>
</div><!-- fragment -->
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<hr/>该类的文档由以下文件生成:<ul>
<li>geometry/include/pcl/geometry/<a class="el" href="mesh__base_8h_source.html">mesh_base.h</a></li>
<li>geometry/include/pcl/geometry/<a class="el" href="mesh__io_8h_source.html">mesh_io.h</a></li>
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